Home / 72,002.25-99,381.33-42,961.86

Finding the Fourth Proportional to 72,002.25, 99,381.33 and 42,961.86

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Solution

The fourth proportional to 72,002.25, 99,381.33 and 42,961.86 is: 59,298.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,002.25 : 99,381.33 = 42,961.86 : x
  2. Step 2: Convert to fraction form
    72,002.25/99,381.33 = 42,961.86/x
  3. Step 3: Cross multiply
    72,002.25x = 99,381.33 × 42,961.86
  4. Step 4: Simplify right side
    72,002.25x = 4,269,606,786.07
  5. Step 5: Solve for x
    x = 4,269,606,786.07/72,002.25
  6. Step 6: Final answer
    x = 59,298.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.